UP FOR SALE IS A RARE ANTIQUE 7-SHOT POCKET REVOLVER. This is a Whitney-Beals Patent Pocket Revolver, aka "Walking Beam Pocket Revolver", made between 1854 and the late 1860s. Yours is the standard iron-frame model with octagonal barrel, .31 caliber, 7-shot percussion revolver. There were about 2,300 of these made in various barrel lengths. SEE PICTURES OF ACTUAL ITEM. WHAT YOU SEE IS WHAT YOU GET.